Earlier this month Daniel dropped an Intel DRM patch bomb of 43 patches that prepared for the imminent mode-setting rework, but now with that code ready, the patch count is up to 81.
He begins the modeset rework patch series with, "Or: How to fix cpu edp in 81 simple steps. Admittedly this includes some minor detours. Yeah, I've managed to pull it through and finally put the last piece into place that started this entire endeavour: cpu edp on my ivb works!"
While there's 81 patches, only about 3,000 lines of code are affected. After this work is merged, Daniel Vetter says there's some other areas of the Intel Linux kernel graphics driver that can then be cleaned up as well.
For more information see his patch series or the earlier Phoronix article on the topic.